This industry comprises establishments primarily engaged in providing pet care services (except veterinary), such as boarding, grooming, sitting, and training pets. Cross-References. Establishments primarily engaged in-- ? Practicing veterinary medicine--are classified in Industry 541940, Veterinary Services; ? Boarding horses--are classified in Industry 115210, Support Activities for Animal Production; and ? Transporting pets--are classified in U.S. Industry 485991, Special Needs Transportation.